Finding the Fourth Proportional to 140,200.30, 193,475.43 and 76,538.10

Step by Step Solution

1. Step 1: Write the proportion equation
   140,200.30 : 193,475.43 = 76,538.10 : x
2. Step 2: Convert to fraction form
   140,200.30/193,475.43 = 76,538.10/x
3. Step 3: Cross multiply
   140,200.30x = 193,475.43 × 76,538.10
4. Step 4: Simplify right side
   140,200.30x = 14,808,241,758.38
5. Step 5: Solve for x
   x = 14,808,241,758.38/140,200.30
6. Step 6: Final answer
   x = 105,622.04